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The stock bearings are sealed so they shouldn't need any lube. Another thing to watch for is the plastic stop inside the rpm carrier can rub on the bearing and cause resistance when the wheel nut is tightened. There was thread on here at one time about it, but that has been a while ago. If that is your problem then you can drill it out to just smaller than the sized of the bearing to make sure it can't contact the side of bearing seal.

You sure about that? I thought they came with the Traxxas bearing with the blue rubber seal. If so the seal comes off so you can clean them and then re lube them with a drop or two of light machine oil.

Interesting to know, I was under the impression they shouldn't be "unsealed" but rather replaced. Of course that was information I read on a post here on the forum...definitely good to know, and I will be giving it a try since I have a few that could use some lube or cleaning.

You can really tell about a bearing being better lubed? Wow, wish I had that much sensitivity. I wasn't aware Traxxas sold a "sealed" bearing....... thought they were all the blue rubber type bearing that's removable and cleanable. (but I've been wrong waaay more often than I care to remember)

the metal sealed bearing's are going to go bad just as fast as the blue sealed set. There is just no way to clean the metal sealed bearing's as good as you can the blue rubber sealed set. Traxxas doesn't use the hardest steel to make them, so they will pit and the ball's get cut up and stick. Aftermarket set's made of a good hard stainless steel would be your best bet.

Another thing to watch for is the plastic stop inside the rpm carrier can rub on the bearing and cause resistance when the wheel nut is tightened. There was thread on here at one time about it, but that has been a while ago. If that is your problem then you can drill it out to just smaller than the sized of the bearing to make sure it can't contact the side of bearing seal.

+1 on this.

I've had this exact issue with some RPM carriers and had to drill out the axle holes to match the bore of the stock ones. The edge of the hole opening touched the inner part of the bearing when it seated and stopped it from spinning freely. I think RPM must have fixed this problem as my son bought a carrier set later and his were OK (i.e. had bigger holes).

Ok I called RPM and they said to that I should drill out a small part from the middle and the bad thing is that I don't have a drill bit that big and it will cost more then the part to get a bigger drill bit..... going to buy the Traxxas stock ones now....